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harina [27]
3 years ago
8

When a solid has energy added and turns to a liquid what is it called?

Chemistry
1 answer:
Phoenix [80]3 years ago
4 0
Melting (solid to liquid)
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A solution contains the ions Ag , Pb2 , and Ni2 . Dilute solutions of NaCl, Na2SO4, and Na2S are available to separate the posit
Delicious77 [7]

Answer:

The solutions should be added in this order NaCl > Na2SO4 > Na2S

Explanation:

Silver is insoluble as a chloride, so the silver ions get precipitated on addition of chloride ion as silver chloride.  This means Ag+ would be removed the first.

So we will add NaCl in the first step.

The following reaction will occur.

Ag+ + Cl- → AgCl(s)

Both, Pb2 and Ni are soluble as chlorides. (lead chloride is soluble as a hot solution but will ppt when colder).

When we add Na2SO4, Pb2+ will get precipitated (because it's insoluble) as PbSO4 and Ni will remain soluble as NiSO4 is soluble in water.

The reaction that will occur is:

Pb^2+ + SO4^2- → PbSO4(s)

Nickel is insoluble as a sulfide. So when we will add Na2S, nickel will be precipitated as sulfide and be able to separate and be collected.

The solutions should be added in this order NaCl > Na2SO4 > Na2S

6 0
4 years ago
WHAT IS THE DEFINITION FOR ISOTOPES, WHAT ARE EXAMPLES OF ISOTOPES, WHAT ARE NON EXAMPLES OF ISOTOPES AND WHAT ARE EXAMPLES OF I
natulia [17]

Answer:

WHAT IS THE DEFINITION FOR ISOTOPES

<u><em>the same atomic number (number of protons), but different mass number of neutrons and protons.</em></u>

WHAT ARE EXAMPLES OF ISOTOPES

<em><u>carbon</u></em>

<em><u>nitrogen</u></em>

<em><u>hydrogen</u></em>

WHAT ARE NON EXAMPLES OF ISOTOPES

<u><em>tiger-striped cat</em></u>

<u><em>idk other ones sorry...</em></u>

3 0
4 years ago
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Have you ever seen a building that looks as if it were made out of mirrors? These buildings are made using reflective glass. How
Ipatiy [6.2K]

Answer:

the sun would reflect off of the windows causing less heat to travel into the building

Explanation:

8 0
3 years ago
SIMPLE ANSWERS ONLY I ALREADY GOOGLED AND DIDN'T FIND ANYTHING PLEASE ANSWER IN YOUR OWN WORDS.
Bad White [126]

Explanation:

The atomic mass of elements on the periodic table are derived from the proportion of the geonormal abundance of the different isotopes of an element.

  • Using a mass spectrometer, the proportion/percentage/fraction by which each of the isotopes of an element occurs in nature is determined.
  • This proportion is the geonormal abundance.
  • From this the atomic mass of the element can be derived.
  • Simply multiply the mass by the abundance and sum the values for the same isotopes together.
5 0
3 years ago
According to periodic trend, which of the following most likely has the highest ionization energy?
baherus [9]
In my opinion, it is Ar (Argon)
Because as we move from left to right in a period, the value of ionization energy increases and Argon occupies the left most side in the respective period of the Periodic Table
7 0
3 years ago
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